BTXETUEL Mini 4-Key Keypad with WASD and Arrow Keys, Keycaps, One-Handed Mechanical Gaming Keypad, Programmable USB-C, Customizable Keyboard for Work

[Portable Mini Keyboard] Ultra-compact size and a detachable USB-C cable effectively save desktop space. Mini keyboard (plug and play) and regular-sized keyboards can be connected to the same computer simultaneously without interfering with each other. [Default Functions] The default functions of the four keys are up, left, down, and right. Plug and play, no software required. Extremely fast workflow. [Other Features] Other functions are also available, including shortcut keys, multi-step operations, multi-key-in-one, undo, redo, play, pause, volume, song switching, forward, and backward. You can control the light color and gradient mode of your preferred case from the software or website. [Website Programming] This website is compatible with macOS, Linux, and Windows systems. We recommend using Chrome or Edge browsers to access the website. Website: SayoDevice.com [Device] Programming is saved in the device. No need to set it up again when changing computers. If you experience any problems with the keypad, please contact us.